Home / 18,351.62-27,518.75-7,112.22

Finding the Fourth Proportional to 18,351.62, 27,518.75 and 7,112.22

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Solution

The fourth proportional to 18,351.62, 27,518.75 and 7,112.22 is: 10,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.62 : 27,518.75 = 7,112.22 : x
  2. Step 2: Convert to fraction form
    18,351.62/27,518.75 = 7,112.22/x
  3. Step 3: Cross multiply
    18,351.62x = 27,518.75 × 7,112.22
  4. Step 4: Simplify right side
    18,351.62x = 195,719,404.13
  5. Step 5: Solve for x
    x = 195,719,404.13/18,351.62
  6. Step 6: Final answer
    x = 10,664.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.